Sewing-machine attachment.



J. KIMMEL.

SEWING MACHINE ATTACHMENT.

APPLICATION FILED 050.15, 1915.

Patented' July 181916.

3 SHEETS-SHEET l.

A TTORNEYS Patented July 18, 1916.

3 SHEETS-SHEET 2 J KIMMEL SEWING MACHINE ATTACHMENT.

APPLICATION FILED IDE C.15, 1915.

WITNESSES mvmroa Joel Kammel A TTORNEYS 'J. KIMM EL. v SEWING MACHINE ATTACHMENT.

APPLICATION FILED DEC-15.1915.

' JOEL KIMMEL, or new YORK, N. Y.

Specification of Letters Patent.

snwmc-macnmn ATTACHMENT.

PatentedJuly 18, 1916.

Application filed December 15, 1915. Serial No. 66,938.

To all whom it may concern:

Be it known that I, JOEL KIMMEL, a subject of the Emperor of Austria-Hungary, and a resident of the city of New York, borough of Manhattan, in the county and State of New York, have invented anew and Improved Sewing -Machine Attachment, of which the following is a full, clear, and ex act description.

This invention relates to sewing machines and has particular reference to attachments for sewing binding upon various commodities or fabrics.

, Among the objects of the invention is to provide a means in connection with a sewing machine for sewing heavy binding upon the soles or uppers of fabric slippers or the like in a much more rapid manner than has heretofore been possible by hand and with a neater result or appearance than can otherwise be accomplished.

Another object of the invention is to provide means of an adjustable or interchangeable nature adapted for manipulating bindings of various thicknesses, qualities or other nature, either with a double hem or with -'a. hem on one side only.

A further object of the invention is to improve the form of presser foot and guiding means formed thereon or adjacent thereto adapting the new folding device for its purose.

With the foregoing and other objects in View the invention consists in the arrangement and combination of parts hereinafter described and claimed, and while the invention is not restricted to the exact details of construction disclosed herein, still for the purpose of illustrating a practical embodiment thereof reference is had to the accompanying drawings, in which like reference characters designate the same partsin the several Views, and in which- Figure 1 is a plan view of a portion of the table of a sewing machine and indicating the principal parts of my improvement in relation thereto; Fig. 2 is a vertical sectional View on the line 22 of Fig. 1; Fig. 3 is a side elevation of the binding guide as viewed from the line 3-3 of Fig. 1; Fig. 4 is a plan view of that form of folder for applying the binding to a sole; Fig. 5 is a transverse sectional detail on the line 5-5 of Fig. 4;.

Fig. 6 is a plan view of the new form of throat plate; Fig. 7 is a longitudinal section of the same onthe line 77; Fig. 8 is a bot 1 tom plan view of a sole indicating the character of the work performed by my improve- Inent inapplying heavy binding such as corduroy, open on the bottom for applica- ,upon a throat plate such as illustrated in Fig. 6; Fig. 10 is a horizontal sectional view on the line 10'-10 of Fig. 1; Fig. 11 is a perspectlve view of one of the new forms of presser foot; Fig. 12 is a bottom plan view of the same; Fig. 13 is a view corresponding to Fig. 12 but showing a slightly different form; Fig. 14 is a sectional detail on the line 1414 ofFig. 8; Fig. 15 is a plan view of a folder designed to form a double hem; Fig. 16 is 'a sectional detail on the line 16--16 of Fig.- 15; Fig. 17 is a plan view of a portion of an upper bound by the folder of Figs.' 15

and 16; 18 is a transverse section 011 the line 18-18 of Fig. 17; Fig. 19 is a plan view of a slightly modified'form of folder connected to a special form of throat plate adapted for unusually fine work; Fig. 20 is a transverse sectional detail of a modified form' of presser foot for use in connection with the mechanism of Fig. 19; Fig. 21 is a bottom plan view of this presser foot; and Fig. 22 is'a fragment of a sole bound by these last mentioned devices, also employed for piping for over-gaiters, shoes etc.

Referring now more particularly to the drawings I show a sewing machine table 25 having a bed plate 26. At 27 is indicated'a throat plate adapted to. be secured to the bed plate in any suitable manner and having a pair of slots 28 and 29 through which the feed mechanism 30 may operatef or the usual purpose. At 31 is indicateda needle hole. The front portion of the throat plate is cut away at 32 leaving a horizontal shoulder 33 just in front of the slots and needle hole and another shoulder 34 having its rear end converging toward the leftv hand end of the shoulder 33 but spaced therefrom as indicated at 35. The direction of the shoulder 34 corresponds approximately to the direction of movement 'of the work in practice.

At S is indicated what may be regarded as the sole ofa fabric or other soft slipper to which a strip of binding B is applied.

In Figs. 1, 4 and 9 especially 1 show that form of folder attachment that I use in sewing the binding upon the sole. This folder comprises a guide 36' and a securing wing or plate 37 secured rigidly and permanently together. The guide has a substantially flat bottom 38, a single roll 39 formed on the left hand edge thereof and'lying in spaced parallel relation to the bottom, and also has a double roll 40 extending upwardly from the right hand edge of the bottom 38. Both of these rolls terminate approximately in the vertical plane of the shoulder 33, while the single roll projects into the open space 35 at the end of the shoulder 34. The strip of binding B is guided through the guide and is folded, as indicated in Fig. 14, into a hem at the upper surface of the sole and is applied flatly by the guiding roll 39 at the bottom of the sole and as the binding thus emerges from the guide it is stitched by the usual operation of the needle 41 forming a single row of stitches 42. The wing 37 is recessed or rabbeted at 43 to fit the recess 32 and squarely against shoulder 33 of the throat plate. The main portion of the wing 37 lies upon the main body of the throat plate ust back ofthe shoulder 33 and is provided with a slot 44 through which a set screw 45 is. adapted to clamp the folder to the throat plate in a tapped hole 46.

The binding is drawn from the spool 47 supported for rotation upon a post 48 having a base 49 secured tothe bed plate in any convenient out-of-the-way place, as indicated just backof the arm. A. A spring 50 is adapted to apply variable tension to the spool according to the adjustment of the collar 51 at the upper end of the post. From the spool the binding is guided through a stationary guide 52 adjustably secured upon a post 53. secured to a base 54 adjacent. the front portion of the machine table. The guide comprises two loops so arranged with respect to each other as to receive the binding from the spool and deliver it to the folder 36 in substantially direct lines. The guide 52 is secured in place by means of a set screw 55 or its equivalent.

That portion of the folder just in the rear of the guide 36 constitutes a guide shoulder 56 from the upper portion of which extends laterally a horizontal lip 57 along which the double rolled portion of the binding is guided beneath the presser foot 58. On the opposite side of the double roll from the shoulder 56 the presser foot is formed with a guiding shoulder 59. At the extreme end of the roll 39 is formed a small curve 60 the function of which is to deflect the binding and work slightly to the right or out of the diagonal path along which the binding up to such point has been moving through theguiding means. i It will be observed that the new form of presser foot 58 in addition to the guiding shoulder 59 and the needle notch 61 is of a much shorter type than. is usually employed, thereby adapting it for direct cooperation with the folder.

In Figs. 11 and 12 I show a presser foot 58 having the same arrangement of guiding shoulder 59.as the other form but provided on its bottom face adjacent the needle notch with feeding teeth 62, these teeth being useful either in connection with or independently of the feed dog 30.

For applying the binding to the upper U I provide that form of folder shown at 36 in Figs. 15 and 16. The guide portion of this folder comprises a bottom 38 and upper and lower double rolls 40 and 39, respectively, adapted to fold the binding so as to produce a double hem as shown in Fig. 18 and adapted to be stitched by a single line of stitches 42 as before described. This folder is provided with a laterally projecting plate 63 extending to the left and substantially filling the space in the throat plate between the shoulders 33 and 34 when the device is secured in place by means of the set screw 45 acting through the slot 44 of the wing 37. This wing is provided with the same arrangement of guiding shoulder 56 and lip 57 as was described in the other modification.

In working upon or with unusually fine or light fabrics I prefer to use that form of throat plate 27' shown in Fig. 20 having a single slot 28 for the feed dog 30 and cutaway to receive the folder 36 adapted to be locked in a recess against'a shoulder 33 by means of the set screw 45. With this form of throat plate and folder I use the form of presser foot 58 shown in Figs. 20 .and 21 having a, shoulder 59 and needle notch 61 having. the same characteristics as the presser foot described above.

Among the other features of v novelty which should be noted in this invention, it will be observed that the feeding devices operating through the slots 28 and 29, are shorter than is the usual practice and also the folder extends farther to the left with forming a pair of obliquely related shoul-- ders, said throat plate also having-a feed dog slot and a needle hole just at the rear of the point of convergence of said shoulders, and a folder for the binding fitted in said recessed portion of the throat plate and agailpst said shoulders, substantially as set .ort

2. The combination of a horizontal throat including a wing adapted to abut against plate having a cut-away portion at its front one of said shoulders and above the same, 10 forming obliquely arranged shoulders conand means to adjustably and removably severging toward each other adjacent the cure the wing to the throat plate.

" needle hole,v a folder comprising a guide JOEL KIMMEL.

member having upper and lower guide rolls \Vitnesses: for the blndlng, the upper grude roll form- G120. L. BEELER, mg a hem 1n the blndlng, szud folder also R. KIMMEL. 

